Calculation of the percentage of a certain point in time

I'm figuring the success rate based on that ID has studied a particular UNIT.

If I want to get the rate AFTER they studied their unit of PREP01

Right now, the code below works fine, but it considers that all the units.

1 ID looked a UNIT in 2010 before the PREP, if I do not want to look at it.

Also studied FGT459 in 2011 SP 1 as well as their FIRST PREP unit in SP 1 so I DON'T want to consider. IF a DEVICE WAS MADE in THE SAME UNIT of TIME THE PREP01 I WANT to IGNORE IT.

After the PREP unit, I want to review any unit that has the status as a GIFT. so on the 3 remaning units, they passed 1 and has no 3 so the percentage is 33.3%

Right now my code gives me 66.7% coz I condier all units.

Suffice it to consider after PREP has been studied (PRESENT) IF a UNIT AT the SAME TIME AS the PREP01 UNIT I WOULD IGNORE IT AS.

Thanks for any help.

The code I tried is:

Select d1.id, ROUND (avg (case PASS_OR_BETTER

When 'Y', 1

0 otherwise

(end) * 100,1) as Col.

OF D1, D2 DAN_SPIL_GRADE DAN_SPIL_GRADE_IDS

WHERE D1. RANK = D2. GRADE

AND D1. STATE = 'PRESENT '.

D1.id group

TABLE1:


CREATE TABLE DAN_SPIL_GRADE_IDS
(VARCHAR2 (8) ID,)
UNIT VARCHAR2 (8).
STATUS VARCHAR2 (8).
GRADE VARCHAR2 (12),
VARCHAR2 (12) OF THE YEAR.
PERIOD VARCHAR2 (12));

INSERT INTO DAN_SPIL_GRADE_IDS (ID, UNIT, STATUS, CATEGORY, YEAR, PERIOD) VALUES ('1', 'FGT458', 'PRESENT', 'HD', ' 2010', "SP4");
INSERT INTO DAN_SPIL_GRADE_IDS (ID, UNIT, STATUS, CATEGORY, YEAR, PERIOD) VALUES ('1', 'FGT459', 'PRESENT', 'HD', ' 2011', "SP1");
INSERT INTO DAN_SPIL_GRADE_IDS (ID, UNIT, STATUS, CATEGORY, YEAR, PERIOD) VALUES ('1', 'PREP01', 'PRESENT', 'P', '2011', "SP1");
INSERT INTO DAN_SPIL_GRADE_IDS (ID, UNIT, STATUS, CATEGORY, YEAR, PERIOD) VALUES ('1', 'OPT878', 'AWAY', 'F', '2011', 'SP2');
INSERT INTO DAN_SPIL_GRADE_IDS (ID, UNIT, STATUS, CATEGORY, YEAR, PERIOD) VALUES (1 ', 'FRE111', 'PRESENT', ', ' 2011', 'SP3');
INSERT INTO DAN_SPIL_GRADE_IDS (ID, UNIT, STATUS, CATEGORY, YEAR, PERIOD) VALUES ('1', 'PREP02', 'PRESENT', 'F', '2012', "SP1");
INSERT INTO DAN_SPIL_GRADE_IDS (ID, UNIT, STATUS, CATEGORY, YEAR, PERIOD) VALUES ('1', 'PREP03', 'PRESENT', 'F', '2013', "SP4");

IDUNITSTATUSGRADEYEARPERIOD
1FGT458CURRENTLYHD2010SP4
1FGT459CURRENTLYHD2011SP1
1PREP01CURRENTLYP2011SP1
1OPT878APSENTF2011SP2
1FRE111CURRENTLYD2011SP3
1PREP02CURRENTLYF2012SP1
1PREP03CURRENTLYF2013SP4

TABLE2


CREATE TABLE DAN_SPIL_GRADE
(RANK VARCHAR2 (8))
PASS_OR_BETTER VARCHAR2 (12));

INSERT INTO DAN_SPIL_GRADE (RANK, PASS_OR_BETTER) VALUES ('HD', 'Y');
INSERT INTO DAN_SPIL_GRADE (RANK, PASS_OR_BETTER) VALUES (',' Y');
INSERT INTO DAN_SPIL_GRADE (RANK, PASS_OR_BETTER) VALUES ('P', 'Y');
INSERT INTO DAN_SPIL_GRADE (RANK, PASS_OR_BETTER) VALUES ('F', ' don't);

GRADEPASS OR BETTER
HDTHERE
DTHERE
PTHERE
FN

Gives:

IDSUCCESS RATE
166.7

Here you are

IDSUCCESS RATE
133.3

Hello

A condition in a WHERE clause can cause an entire line is ignored.

The same condition in a CASE expression can cause individual values is ignored, while keeping the line.

You can modify the solution of knapen, remove the comparison of the unit_temp to 'PREP01' in the WHERE clause and put it in the expression BOX, like this:

Select id

tour

(

AVG

(

case

When unit_temp = "PREP01" then NULL - compare here

When pass_or_better = "Y" then 100

0 otherwise

end

)

1

) as Col.

de)

Select a.id

a.unit

b.pass_or_better

a.year

a.period

, max (decode (unit, 'PREP01', 1, 0)) flag (partition by a.id stopped by year, period, unit)

, max (unit) keep (dense_rank from first order to decode (unit, 'PREP01', 0, 1)) on unit_temp (partition by id, year, period)

of dan_spil_grade_ids one

Join dan_spil_grade b

On a.grade = b.grade

and a.status = 'PRESENT '.

)

where flag = 1

- and unit_temp! = "PREP01" - not here

Group

by id;

The display of your sample with this added line data:

INSERT INTO DAN_SPIL_GRADE_IDS (ID, UNIT, STATUS, CATEGORY, YEAR, PERIOD)

VALUES ('2', 'PREP01', 'PRESENT', 'F', '2012', 'SP3');

is

ID PASS

-------- ----------

1 33.3

2

Tags: Database

Similar Questions

  • Calculation of the percentage

    Hi, I need help creating a calculation field that would be the percentage of the values obtained from the groups radio button in acrobat 9.0.

    I have essentially ten groups radio button (ODIO1, ODIO2, ODIO3, ODIO4, ODIO5, ODIO6, ODIO7. ODIO8, ODIO9, ODI10).  They

    each have six radio buttons/chocies that correspond to values of button of 0,1,2,3,4 and 5.

    I need essentially a calculation field that displays the percentage of groups with the equation = (SUM(ODI01-ODI10)/50) * 100%.

    It would give me a value from 0 to 100%.

    I have little experience in the use of Javascript, so any help to the creation of a Javascript script to use this equation is greatly appreciated.

    Thank you!

    If you use a percentage field the result must be a number between 0 and 1, not 100...

    In any case, copy the following code reproduces your formula:

    var total = 0;

    for (var i = 1; i)<=10;>

    total += + (this.getField ("ODIO") + i) .value;

    Event.Value = (total: 50) * 100;

  • Calculation of the percentages of subqueries

    I got two sets of data - the total amount of renewable possible (IE sales last year) and the amount renewed (IE sales this year). What I need is a query that takes these two numbers and spits out the percentage renewed - (renewed / renewable) * 100. Complicated bit is I need to do this for each quarter - so I really need (sum (renewed) / sum (renewable)) * 100. The query below is my attempt to get the right numbers.

    The first select in the FROM statement below (with an alias as c) returns the total renewable for each quarter, as follows (the letters refer to specific products):
    Quarter          E                  S                  P                 F               Total
    First     339280.93     119124.45     713,588.08     37628.03     1,209,621.49
    Second     292568.55     101816.04     444,521.27     41894.42     880,800.28
    Third     460329.66     115907.42     452,387.62     66382.78     1,095,007.48
    Fourth     376677.66     112729.72     448,698.84     53152.44     991,258.66
    The second subselect in reports (with an alias like f) FROM total renewed for each quarter, as follows:
    Quarter          E                S                  P                 F                Total
    First     308735.15     82457.86     395,650.36     19520.87     806,364.24
    Second     109025.85     45634.73     113,095.45     20157.75     287,913.78
    Third     0.00          0.00     0.00     0.00     0.00
    Fourth     0.00     0.00     0.00     0.00     0.00
    When I run the query, I get four lines for each quarter, which is clearly not correct. For each quarter there are two rows which are all zeros, a line that has the correct percentages and the other with only garbage numbers.
    First                0.00                0.00                0.00                0.00                0.00
    First               91.00               69.22               55.45               51.88               66.66
    First               32.13               38.31               15.85               53.57               23.80
    First                0.00                0.00                0.00                0.00                0.00
    Second                0.00                0.00                0.00                0.00                0.00
    Second                0.00                0.00                0.00                0.00                0.00
    Second               37.27               44.82               25.44               48.12               32.69
    Second              105.53               80.99               89.01               46.60               91.55
    Third                0.00                0.00                0.00                0.00                0.00
    Third               67.07               71.14               87.46               29.41               73.64
    Third               23.68               39.37               25.00               30.37               26.29
    Third                0.00                0.00                0.00                0.00                0.00
    Fourth               28.94               40.48               25.21               37.92               29.05
    Fourth               81.96               73.15               88.18               36.73               81.35
    Fourth                0.00                0.00                0.00                0.00                0.00
    Fourth                0.00                0.00                0.00                0.00                0.00
    I tried to add the outermost Select, but then I can't understand a good group of. Any help on this would be appreciated, thanks.
    Select C.Quarter As Quarter_Name, 
           Round((F.E_Revenue / C.E_Revenue) * 100, 2) As E_Revenue,
           Round((F.S_Revenue / C.S_Revenue) * 100, 2) As S_Revenue,
           Round((F.P_Revenue / C.P_Revenue) * 100, 2) As P_Revenue,
           Round((F.F_Revenue / C.F_Revenue) * 100, 2) As F_Revenue,
           round((f.total_revenue / c.total_revenue) * 100, 2) as total_revenue, 
           c.sortcol as sortcol
        from 
            (SELECT DECODE(B.QUARTER_NAME, 1, 'First', 2, 'Second', 3, 'Third', 4, 'Fourth', 'Unknown') AS QUARTER, 
                   SUM(B.e_revenue) AS E_REVENUE, 
                   Sum(B.s_revenue) As S_Revenue, 
                   SUM(B.p_revenue) AS P_REVENUE, 
                   SUM(B.f_revenue) AS F_REVENUE, 
                   SUM(B.total_revenue) AS TOTAL_REVENUE, 
                   b.quarter_name as sortcol
                From
                     (Select mth.Quarter As Quarter_Name, 
                           Nvl((Select renewable_amt.Net_Revenue From renewable_amt Where renewable_amt.Product_Code = 'extended' And renewable_amt.Month_Id = A.Month_Id), 0) As e_revenue, 
                           Nvl((Select renewable_amt.Net_Revenue From renewable_amt Where renewable_amt.Product_Code = 'standard' And renewable_amt.Month_Id = A.Month_Id), 0) As s_revenue, 
                           Nvl((Select renewable_amt.Net_Revenue From renewable_amt Where renewable_amt.Product_Code = 'professional' And renewable_amt.Month_Id = A.Month_Id), 0) As p_revenue, 
                           Nvl((Select renewable_amt.Net_Revenue From renewable_amt Where renewable_amt.Product_Code = 'forecaster' And renewable_amt.Month_Id = A.Month_Id), 0) As f_revenue,
                           nvl((Select Sum(renewable_amt.Net_Revenue) From renewable_amt Where renewable_amt.Month_Id = A.Month_Id), 0) As total_revenue
                        FROM (SELECT DISTINCT renewable_amt.MONTH_ID FROM SMS.renewable_amt WHERE renewable_amt.FISCAL_YEAR = DECODE(EXTRACT(MONTH FROM TO_DATE(:H_P16_REPORTDT, 'DD-MON-YY')), 11, EXTRACT(YEAR FROM TO_DATE(:H_P16_REPORTDT, 'DD-MON-YY')) + 1, 12, EXTRACT(YEAR FROM TO_DATE(:H_P16_REPORTDT, 'DD-MON-YY')) + 1, EXTRACT(YEAR FROM TO_DATE(:H_P16_REPORTDT, 'DD-MON-YY')))) A, 
                             companyx.Month mth
                      Where mth.Month_Id = A.Month_Id) B
            GROUP BY B.QUARTER_NAME) c,
            (Select decode(e.Quarter_Name, 1, 'First', 2, 'Second', 3, 'Third', 4, 'Fourth', 'Unknown') as quarter, 
                   SUM(e.e_revenue) AS E_REVENUE, 
                   SUM(e.s_revenue) AS S_REVENUE, 
                   SUM(e.p_revenue) AS P_REVENUE, 
                   SUM(e.f_revenue) AS F_REVENUE, 
                   Sum(e.total_revenue) As Total_Revenue, 
                   e.quarter_name as sortcol
                from
                    (Select mth.quarter As quarter_Name, 
                           Nvl((Select renewed_amt.Renewed_Net From renewed_amt Where renewed_amt.Product_Code = 'extended' And renewed_amt.Month_Id = d.Month_Id And trunc(renewed_amt.report_dt) = :H_P16_REPORTDT), 0) As e_revenue, 
                           Nvl((Select renewed_amt.Renewed_Net From renewed_amt Where renewed_amt.Product_Code = 'standard' And renewed_amt.Month_Id = d.Month_Id And trunc(renewed_amt.report_dt) = :H_P16_REPORTDT), 0) As s_revenue, 
                           Nvl((Select renewed_amt.Renewed_Net From renewed_amt Where renewed_amt.Product_Code = 'professional' And renewed_amt.Month_Id = d.Month_Id And trunc(renewed_amt.report_dt) = :H_P16_REPORTDT), 0) As p_revenue, 
                           Nvl((Select renewed_amt.Renewed_Net From renewed_amt Where renewed_amt.Product_Code = 'forecaster' And renewed_amt.Month_Id = d.Month_Id And trunc(renewed_amt.report_dt) = :H_P16_REPORTDT), 0) As f_revenue,
                           nvl((Select sum(renewed_amt.renewed_net) From renewed_amt Where renewed_amt.Month_Id = d.Month_Id and trunc(renewed_amt.report_dt) = :H_P16_REPORTDT), 0) As total_revenue
                        From (Select Distinct renewed_amt.Month_Id From Sms.renewed_amt Where trunc(renewed_amt.report_dt) = :H_P16_REPORTDT) d, 
                             companyx.Month Mth
                      Where mth.Month_Id = d.Month_Id) e
            Group By E.Quarter_Name) F
    order by sortcol;       

    Hello

    It looks like you are a cross between c and e join.
    Shoudn't you have a join condition, something like that?

    ...               Where mth.Month_Id = d.Month_Id) e
            WHERE    c.quarter_name = e.quarter_name              -- Added
            Group By E.Quarter_Name) F
    order by sortcol;       
    

    If this does not resolve the problem, after a few examples of data (CREATE TABLE and INSERT statements) and the results desired from these data.

  • Calculation of the percentages of color

    I designed a floor of terrazzo using Freehand. My terrazzo contractor needs to know the percentage of each color, I used so it can order the right amount of material. Is there a feature that will show me what percentage of each color, I used for all the colors specified on my drawing?
    Thank you for all that help you can provide!

    > Is there a function that will show me what percentage of each color
    > I used for all the colors specified on my drawing?

    I don't know how to do that in FreeHand. However, if you have access to
    Illustrator, there is a free filter called PathArea.

    http://www.Telegraphics.com.au/SW/

    In artificial intelligence, use the magic wand tool to select all the paths with a fill color. The
    PathArea filter returns the total area. After recording manually areas,
    each color, it would be a simple matter to calculate the percentages.

    The filter for AI CS2 works in CS3. GOT CS3 will open most of the versions of
    FreeHand files.

    Judy Arndt

  • Calculation of the value of ready for a custom time period

    Hello

    article (*) and some other sites describe how to calculate the percentage value of the ready time for the periods of time given (in real time, (day, week, month and year).

    States KB:

    There is a shortcut, you can use the following formulas for the intervals to update chart by default to get the loan % CPU:

    • Real-time: value of summons processor / 200
    • Last day: value of summons UC / 3000
    • Last week: value of summons UC / 18000
    • Last month: value of summons UC / 72000
    • Last year: value of UC summons / 864000

    But it is also possible to obtain the divisor for a custom time period?

    for example if I choose the period of 14.10.2013 - 14.10.2013 08:00 - 10.00. The period is 2 hours. But what is the divisor and how to calculate it for other periods?

    Any help would be greatly appreciated,

    Chris

    (*) VMware KB: conversion between the summation of values CPU and CPU ready %

    It depends on what adjustments to custom value data.

    for example. If the custom vale was spent time maintaining real so in your example it is 2 hours and then he gets back in the daily data, it would be in 5 min data points.

    same goes if my custom value went for 2 days, it will be so in the past set of data of the week etc. It does not display some of them in every week and then some in every day.

    BTW, the numbers you cited have an extra 0 on the end of each

    See you soon

  • pl/sql block, reading the reading of data from the table to a single point in time

    I'm trying to figure out if several cursors in a PL/SQL block are executed inside a single Point in time, and so don't see no updates of paintings by other processes or procedures running at the same time.

    The reason why I ask is I have a block of code as an initial extraction of data, with some Sanity Check before the code runs. However, if another procedure might modify the data between the two, then the mental health check is not valid. So I am essentially trying to know if there is consistency read in a PL/SQL, preventing updates to other processes to be seen.

    Anyone who has an idea?
    BR,
    Chambaz

    Google SET Transaction.

    or

    Follow this link

    http://download-West.Oracle.com/docs/CD/B12037_01/server.101/b10759/statements_10005.htm

    Kind regards
    Prazy

  • Calculation of the percentage formula Member

    I have a dimension of data type in an OSI application that is used to calculate adjustments to historical data. It is a dimension Label with only 3 members:

    Historical value

    Adj %

    Calculated Wo (dynamic member)

    Where I placed the following member formula in CalculatedAdj: CalculatedAdj = HistoricalValue * % Wo

    When validating the foregoing formula, I get the following error message "compilation error formula for [] (line 1): invalid assignment."

    I'm guessing that the formula is too simple and other parameters must be included, but I'm at a loss as to what they are. I appreciate your help.

    Hello f. Arabak

    If your synatax is exactly what you have written, then try this

    "CalculatedAdj" = "HistoricalValue" * "Wo % ';

    The special character needs quotation marks.

    He was missing the semicolon.

    Kind regards

    Philip Hulsebosch

  • When on a Web site, I am unable to have other screens open in the sites after a certain point. How can I fix it?

    On 3 different sites I can go so far on my laptop now.   On an older desktop, everything is accessible.  What should I do to correct this problem on this laptop 4 months old?

    Hello

    (1) did you make any changes before the show?

    (2) what version of Internet Explore do you use?

    Method 1: You can check if the same problem occurs in safe mode?

    Please follow the link on how to start the computer in safe mode with network below.

    http://Windows.Microsoft.com/en-us/Windows7/start-your-computer-in-safe-mode

    Method 2:

    Try to start Internet explorer mode without modules and check to see if the same problem happens.

    See the link below:

    http://Windows.Microsoft.com/en-us/Windows7/Internet-Explorer-Add-ons-frequently-asked-questions

    Please report if you are still having the problem. I will be happy to provide you with the additional options that you can use to get the problem resolved.

    We can't wait to hear back on your part.

  • I just bought a Microsoft Surface Pro with Windows 8, and the cursor will not appear at certain points in time

    I recently bought the Microsoft Surface with Windows 8 Pro is installed, and sporadically the cursor disappears.  It doesn't matter if I use internet, Outlook or any other program.  Any ideas how to fix this?

    Clues in the present?

    The mouse cursor over where the Surface Pro and drift
    http://www.surfacetablethelp.com/2013/02/surface-Pro-mouse-cursor-unresponsive-and-drift.html

  • How to show the characters from a certain point

    This should be quite simple to do, but I do not know how...

    I have a field that has an output like:

    Personal shopping - clothes

    Is there a way to show that what comes after the two indents (only show the word clothing on the screen).

    I am using ColdFusion 5.

    Any help would be appreciated!

    If dashes are constant and will not appear more than once, you can do this:


    It's a little sloppy because of the assumptions, but it should work.

  • Move the object for a certain interval of time

    Hello, I am working on a tile set based, and currently I'm trying to fix the movement. I want to make is that my character moves easily for a fixed amount of time. I could not be explaining my self very clearly, but I want to do something like this:

    function keyPress(event:KeyboardEvent)

    {

    If (event.keyCode is Keyboard.RIGHT)

    {

    Moves 25 characters pixels to the right smoothly.

    }

    }

    Hope I did understand, any help is much appreciated

    Here's a way to move a key maintained, but it will not help if someone starts to sting the key since you have a timed speed movement.  To overcome that you'd have to have a listener for the interpolation, which contains a similar restriction / control...

    var rightDown:Boolean = false;

    stage.addEventListener (KeyboardEvent.KEY_DOWN, keyPress);
    stage.addEventListener (KeyboardEvent.KEY_UP, keyRelease);

    function keyPress(event:KeyboardEvent)
    {
    If (event.keyCode is Keyboard.RIGHT)
    {
    if(!rightDown) {/ / only allow the interpolation occurs when the key is pressed first}
    rightDown = true;
    Tween here

    }
    }
    }

    function keyRelease(event:KeyboardEvent)
    {

    reset the command when the key is released
    If (event.keyCode is Keyboard.RIGHT)
    {
    rightDown = false;
    }
    }

  • How to write textfield that can change the line after a certain period of time?

    Hi all

    I would like to create a field that can take an entry and after some specified width, can change line.

    Thank you best regards &,.

    Narendra

    See this Article.

    http://NA.BlackBerry.com/eng/devjournals/resources/journals/jul_2005/creating_textbox_field.jsp

  • Assign different drive as the location of System Restore Point?

    I have a Pavilion H8-1234 with a hard drive of 200 GB after-market (G.)  I see nothing in the Protection options of the system which allows me to assign a specific drive to store restore Points.

    Can I connect the G: drive to store restore Points? If so, how?  Thank you

    Hello Teneyck,

    Even if your browser to remember your login/pass still logged out of the community after a certain period of time for security reasons.

    See you soon.

  • the value according to the percentage split

    Hey suppose I have 2 columns in a table like this

    C1 c2
    __________
    20 200
    20
    40

    now I need a sql query that displays the output as

    C1 c2 c3
    ____________
    20 200 40
    20 40
    40 80

    that means I'm calculation of the percentages in column c1 c2 c3 column-based, can anyone help with the query

    I added the Group column. Without that there is no way to identify which c1 belongs to the cost of which c2.

    with pct_tbl as
    (select 1 grp, 20 c1, 200 c2 from dual union
    select 1 grp, 20, NULL from dual union
    select 1 grp, 60, NULL from dual union
    select 2 grp, 30, 300 from dual union
    select 2 grp, 30, NULL from dual union
    select 2 grp, 40, NULL from dual union
    select 3 grp, 10, 150 from dual union
    select 3 grp, 10, NULL from dual union
    select 3 grp, 30, NULL from dual)
    select grp, c1,c2,
    c1*first_value(c2) over (partition by grp order by grp,c2)/(sum(c1) over (partition by grp)) d
    from pct_tbl
    order by grp, c2 nulls last ;
    
           GRP         C1         C2          D
    ---------- ---------- ---------- ----------
             1         20        200         40
             1         20                    40
             1         60                   120
             2         30        300         90
             2         30                    90
             2         40                   120
             3         10        150         30
             3         10                    30
             3         30                    90
    

    Enjoy!
    Arpit

  • Find the percentage of double pairs false in five two sets of columns

    The situation is that I have four sets of two related columns, and these four sets are repeated during 17 sheets. They are all checkboxes (essentially and or or), and I've already configured to do a little when one of them is checked.

    What I want to understand, is if it is possible to indicate the percentage of a pair of two time column to be false. I want to compare, over time (represented by worksheets), how each pair of column.

    Here is a screenshot. Currently, I am tagging manually false lines double red, but I would like to than my 18 leaf, which collects information about the rest, to quickly view how each column pair done.

    You can count double false according to the following formula:

    = COUNTIFS (A, B, FALSE, FALSE)

    Showing maybe some of you could move it from whats on a sheet, view table names, and what is on page 18.

    This will allow us to provide a solution specific to your situation

Maybe you are looking for

  • Battery problem

    Hey everybody I have iphone 6 s with ios9.3.5 I noticed that the percentage of the battery doesn't drop as normal for example I've used my phone with 45% approximately 6 minutes When the percentage of which 44%, I used the phone about 2 minutes and h

  • Exit safe mode under OSX after the installation of the drive

    II have re-installed just OSX disc in safe mode and I wan't to quit smoking on the screen of welcome for the new owner can continue with their own implementation, how, I'll stop.

  • Is there a change of leading event?

    Is there an event that will tell me when the VI loses most? I would like to make a sort of deadman's trigger that fires when the front is no more. If it comes to it, I'll ask FP.isfrontmost.

  • Update Windows XP?

    I received the local notice related to the cessation of support for Windows XP from the April 8, 2014. Today, on 10 April, I woke to a message I had received/installed a Windows update from one day to the next, requiring a shutdown of the computer. W

  • OfficeJet Pro 6835: Error: there is a problem with the printhead

    I see that the only recourse for all those who, so far, should be under warranty. We rarely use the printer, if the error occurred when he was one month, per week and five days out of warranty. Someone has managed to speak to give them some satisfact